MAX809ZEXR+T

Supervisors Overview

The MAX809ZEXR+T is a voltage supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It monitors a single input voltage with a threshold of 2.32V and features an active-low, push-pull output. The device operates within a supply voltage range up to 5.5V and provides a minimum reset timeout of 140ms. It is housed in a SC-70 (SOT-323) surface-mount package and supports an operating temperature range from -40°C to +125°C.

Supervisors Feature Summary

• Provides simple reset or power-on reset functionality for monitored voltage rails
• Features an active-low push-pull output driver for direct interface with digital logic
• Operates over an extended industrial temperature range suitable for harsh environments

Supervisors Applications

• Microprocessor reset circuits
• Battery-powered systems monitoring
• Portable equipment power supervision

Supervisors Procurement Notes

Verify the specific suffix 'Z' against the official datasheet to confirm the exact threshold voltage and package variant, as suffixes define electrical characteristics. Ensure the '+T' designation matches the required reel packaging format for your assembly line. Cross-reference the manufacturer part number with authorized distributors to confirm current availability and authenticity before procurement.

Supervisors Selection Notes

Select this component when a low-cost, single-channel supervisor with a 2.32V threshold is required. The SC-70 package offers space efficiency for compact designs. Consider the 140ms minimum reset timeout and active-low output polarity during system integration. Verify that the 5.5V maximum supply rating aligns with the target application's voltage levels.

Supervisors Part Context

This part belongs to the MAX809 series of microprocessor supervisors. These devices are designed to ensure reliable system operation by detecting under-voltage conditions. The series includes various threshold options and packages, with the ZEXR variant specifically offering the SC-70 form factor and defined threshold characteristics for general-purpose voltage monitoring.

Supervisors Replacement Considerations

Check for MAX809REXR+T or MAX809LEUR+T if different thresholds or SOT-23 packages are acceptable. Verify pin compatibility and electrical specifications before substituting.